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Governale SunRad radiators
I am planning to use Sun Rad radiators on 2 pipe steam. I have used them many times on 1 pipe, with no problems. But with a full size 1 1/4" valve there is no way for water to get trapped. My concern is, condensate getting trapped in the leg of the Sun Rad and causing water hammer. Especially as 1 of the steam supplies is going to be downfeed of the radiator.
Has anybody used the SunRad on 2 pipe steam? Or should I just stick to GovFree, where I know the condensate can be fully drained. I have no access to the boiler or control over the steam pressure, this is a standard 2 pipe system with steam traps, not a vapor system.
another question; Does anybody still make ecentric bushings? I have often seen them on old radiators, but never used them. As the radiators are small I do not have the room for ecentric couplings.